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Microorganisms & cells

Total questions: 40

Worksheet time: 53mins

Name
Class
Date
1.
A preparation of weakened or killed pathogens.
a)
Bacteria
b)
Antibiotic Resistance
c)
Vaccine
d)
Capsid
2.
 Viruses can reproduce (replicate) on a surface (ex: table, chair, etc.)
a)
True
b)
False
3.
Viruses are highly specific to the host cells that they can infect.
a)
True
b)
False
4.
Antibiotics can be used to treat a viral infection.
a)
True
b)
False
5.
Mold helps dead things (plants, animals)...
a)
Grow
b)
Decay
c)
Sleep
d)
Reproduce
6.
Some fungus can provide food.
a)
True
b)
False
7.
Salmonella and E. Coli can be found on ________________ and ________________ so it is important to cook all meat to kill bacteria.
a)
Waffles and scrambled eggs
b)
Broccoli and steamed corn
c)
Eggs and raw chicken
d)
Sushi and Toaster Strudel 
8.
Harmful viruses can cause:
a)
Colds
b)
Influenza
c)
Both of the above
d)
Neither of the above
9.
Fungi can cause skin diseases and kill crops.
a)
True
b)
False
10.
Microorganisms can be found:
a)
The the ocean, inside and outside your body
b)
On plants and animals
c)
In medicine and your food
d)
All of the above
11.
Anti-bacterial means:
a)
active against bacteria.
b)
feeds bacteria and helps it grow.
c)
has no effect on bacteria.
d)
sometimes works against bacteria, but not always.
12.

A bacteria responsible for curdling of milk is:

a)

Lactobacillus

b)

Rhizobium

c)

Oscillatoria

d)

Plasmodium

13.

The disease causing microbes are known as

a)

Pathology

b)

Pathogenesis

c)

Pathogens

d)

Antibodies

14.

Rhizobium bacteria

a)

Helps in digestion

b)

Helps in Nitrogen fixation

c)

Causes disease

d)

All of the above

15.

Preservatives used in pickles is

a)

Sodium benzoate

b)

Heat and cold treatment

c)

Sugar

d)

Oil and Vinegar

16.

Bacteria is known as__________________ in an ecosystem when feeding on dead organisms.

a)

Decomposers

b)

Herbivore

c)

Pathogens

d)

Infections

17.

Microorganisms can be seen with the help of a

a)

Kaleidoscope

b)

Telescope

c)

Microscope

d)

Periscope

18.

Viruses show characteristics of:

a)

Both living & non-living

b)

Living

c)

Prokaryotes

d)

Non-living

19.

Viruses live and reproduce

a)

outside the top layer of soil.

b)

inside a water body.

c)

outside a host body.

d)

inside a host cell.

20.
Which of the following is an example of a harmful microorganism?
a)
Fungi used as antibiotics
b)
Ecoli on food that makes people sick
c)
Bacteria found in yogurt.
d)
Microorganisms helping dead matter to decay
21.

_________ convert atmospheric nitrogen into plant usable form

a)

viruses

b)

protozoa

c)

bacteria

d)

fungi

22.

which is the correct group of diseases caused by virus

a)

flu, cold and cough, dengue

b)

tuberculosis, typhoid

c)

aspergillosis , skin diseases

d)

all of the above

23.
Why are bacteria necessary to life?
a)
used in nitrogen fixation
b)
they are decomposers
c)
they help human digestion
d)
all of these
24.
Which of the following help bread rise?
a)
algae
b)
bacteria
c)
yeast
d)
fungi
25.
In what conditions do  most bacteria grow best?
a)
warm and moist
b)
cool and dry
c)
warm and dry
d)
cool and moist
26.
Which is not an example of a harmful microorganism?
a)
Mold growing on a kitchen sponge
b)
Bacteria found in yogurt
c)
Bacteria that causes turberculosis
d)
Salmonella on uncooked chicken
27.
This specialized cell does not contain a nucleus to allow for transport of oxygen
a)
Nerve Cell
b)
Red Blood Cell
c)
White Blood Cell
d)
Palisade cell
28.
The role of these specialized cells is to help fight off infection and foreign bodies.
a)
Palisade Cells
b)
Nerve Cells
c)
White Blood Cells
d)
Red Blood Cells
29.
This cell sends one way chemical signals throughout the body. 
a)
Nerve Cell
b)
Red Blood Cell
c)
White Blood Cell
d)
Xylem
30.
This type of muscle is involuntary. These muscles make up your digestive system, among other things. 
a)
Striated Muscle
b)
Cardiac Muscle
c)
Xylem
d)
Smooth Muscle
31.
These specialized cells contain a large number of chloroplasts for absorbing light
a)
Nerve Cell
b)
Palisade Cell
c)
Smooth Muscle cell
d)
Chlorophyll
32.

Which type of specialized cell carries oxygen from the lungs all over the body?

a)

red blood cells

b)

squamous (skin) cells

c)

muscle cells

d)

white blood cells (macrophages)

e)

nerve cells (neurons)

33.

What is the function of nerve cells?

a)

Allow for gas exchange to happen.

b)

Transport oxygen throughout the body.

c)

Control DNA expression.

d)

Transmit electrical signals to different parts of the body.

34.

TRUE or FALSE: red blood cells are a eukaryotic cell that lack a nucleus. This allows it to carry maximum oxygen throughout the body.

a)

True

b)

False

35.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
36.
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...
a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
37.
After meiosis is complete, the new cells:
a)
are all identical
b)
are all different
c)
are half identical and half different
d)
are all stretched out
38.
How many daughter cells are produced from meiosis ?
a)
10
b)
6
c)
4
d)
2
39.
In Meiosis if the parent cells has 40 chromosomes, then how many will the daughter cells have 
a)
40
b)
10
c)
20
d)
18
40.
When a cell divides, what do we call the 2 new cells?
a)
mother cells
b)
father cells
c)
daughter cells
d)
son cells

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